<template>
  <el-menu
    :default-active="$route.path"
    class="el-menu-vertical-demo"
    background-color="#545c64"
    text-color="#fff"
    active-text-color="#ffd04b"
    @open="handleOpen"
    @close="handleClose"
    :collapse="isCollapse"
  >
    <h3>{{ isCollapse ? '后台' : '后台管理系统' }}</h3>
    <el-menu-item
      v-for="item in noChildren"
      :index="item.path"
      :key="item.path"
      @click="clickMenu(item)"
    >
      <i :class="'el-icon-' + item.icon"></i>
      <span slot="title">{{ item.label }}</span>
    </el-menu-item>

    <el-submenu
      v-for="item in hasChildren"
      :index="item.label"
      :key="item.label"
    >
      <template slot="title">
        <i :class="'el-icon-' + item.icon"></i>
        <span slot="title">{{ item.label }}</span>
      </template>
      <el-menu-item-group v-for="subItem in item.children" :key="subItem.path">
        <el-menu-item @click="clickMenu(subItem)" :index="subItem.path">{{
          subItem.label
        }}</el-menu-item>
      </el-menu-item-group>
    </el-submenu>
  </el-menu>
</template>

<script>
import { mapState, mapMutations } from 'vuex';

export default {
  name: 'CommonAside',
  data() {
    return {
      menu: [],
      myPath: '',
    };
  },
  watch: {
    // $route: {
    //   immediate: true,
    //   handler() {
    //     console.log(this.$route);
    //     this.myPath = this.$route.path;
    //   },
    // },
  },
  methods: {
    ...mapMutations('tap', ['selectMenu']),
    handleOpen(key, keyPath) {
      console.log(key, keyPath);
    },
    handleClose(key, keyPath) {
      console.log(key, keyPath);
    },
    clickMenu(item) {
      this.$router.push({
        name: item.name,
      });
      this.selectMenu(item);
    },
  },
  computed: {
    ...mapState('tap', ['isCollapse']),
    noChildren() {
      return this.asyncMenu.filter((item) => !item.children);
    },
    hasChildren() {
      return this.asyncMenu.filter((item) => item.children);
    },
    asyncMenu() {
      return this.$store.state.tap.menu;
    },
  },
};
</script>

<style lang="less" scoped>
.el-menu-vertical-demo:not(.el-menu--collapse) {
  width: 200px;
  min-height: 400px;
}

.el-menu {
  height: 100%;
  border: none;
  h3 {
    color: #fff;
    text-align: center;
    line-height: 48px;
  }
}
</style>
